CN206011433U - The mandrel structure that a kind of concrete duct is poured - Google Patents
The mandrel structure that a kind of concrete duct is poured Download PDFInfo
- Publication number
- CN206011433U CN206011433U CN201620849504.5U CN201620849504U CN206011433U CN 206011433 U CN206011433 U CN 206011433U CN 201620849504 U CN201620849504 U CN 201620849504U CN 206011433 U CN206011433 U CN 206011433U
- Authority
- CN
- China
- Prior art keywords
- core body
- inner core
- wing bar
- poured
- circular slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model discloses the mandrel structure that a kind of concrete duct is poured, including inner core body, at the inner ring position of the inner core body, annular is provided with the wing bar of more than three, the length of the wing bar is identical with the length of the inner core body, the circular slab for being internally provided with more than three pieces of the inner core body, the draw-in groove for coordinating the wing bar is provided with the outer ring position of the circular slab, convex portion is provided with the shaft core position of the circular slab, the convex portion has through hole, annular is provided with locating slot at the inner wall position of the through hole, internal core rod is combined with the through hole, the positioning strip for coordinating the locating slot is provided with the outer ring position of the internal core rod；This device can increase the bending resistance of inner core body by wing bar, carry out inner ring support by arranging circular slab, it is to avoid the surface of inner core body deforms, it is ensured that using reliability, while when core pulling operation is carried out, can facilitate core pulling with rotary inner core bar.
Description
Technical field
The utility model is related to the mandrel structure that a kind of concrete duct is poured.
Background technology
In concrete duct casting process, need to carry out pipeline shaping by mould, mould includes shell and plug, existing
Plug in technology is a simple hollow metal barred body, and which supports and stress-bearing capability is effective, when speed of perfusion is too fast, very
Easily cause the deformation of plug, the quality of the concrete duct obtained by affecting.
Content of the invention
The technical problems to be solved in the utility model is to provide the mandrel structure that a kind of concrete duct is poured, and this device leads to
Crossing wing bar can increase the bending resistance of inner core body, carry out inner ring support by arranging circular slab, it is to avoid the table of inner core body
Face deforms, it is ensured that using reliability, at the same carry out core pulling operate when, can with rotary inner core bar, help inner core body with
Departed from by joints cement pipeline, facilitate core pulling.
For solving the above problems, the utility model is adopted the following technical scheme that：
The mandrel structure that a kind of concrete duct is poured, including inner core body, ring at the inner ring position of the inner core body
Shape is provided with the wing bar of more than three, and the length of the wing bar is identical with the length of the inner core body, the inner core body
More than three pieces of circular slab is internally provided with, the draw-in groove for coordinating the wing bar at the outer ring position of the circular slab, is provided with,
Convex portion is provided with the shaft core position of the circular slab, the convex portion has through hole, annular at the inner wall position of the through hole
Locating slot is provided with, internal core rod is combined with the through hole, be provided with cooperation described fixed at the outer ring position of the internal core rod
The positioning strip of position groove.
Preferably, it is welded and fixed between the wing bar and the inner core body.
Preferably, between the wing bar and the draw-in groove, spot welding is fixed.
Preferably, matcoveredn is set at the outer ring position of the inner core body.
Preferably, interference fits between the wing bar and the draw-in groove.
The beneficial effects of the utility model are：This device can increase the bending resistance of inner core body by wing bar, pass through
Arranging circular slab carries out inner ring support, it is to avoid the surface of inner core body deforms, it is ensured that using reliability, while being taken out
When core is operated, inner core body can be helped and departed from by joints cement pipeline with rotary inner core bar, facilitate core pulling, the knot of this device
Structure is relatively simple, and cost is more cheap, is suitable for promoting the use of.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is front view of the present utility model；
Fig. 2 is sectional view at A-A of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, apparent clear and definite so as to make to protection domain of the present utility model
Define.
Refering to the mandrel structure that a kind of concrete duct shown in Fig. 1 and Fig. 2 is poured, including inner core body 1, the inner core
At the inner ring position of body 1, annular is provided with the wing bar 2 of more than three, the length of the wing bar 2 and the length of the inner core body 1
Identical, the circular slab 3 for being internally provided with more than three pieces of the inner core body 1 is spent, is arranged at the outer ring position of the circular slab 3
There is the draw-in groove for coordinating the wing bar 2（Not shown）, at the shaft core position of the circular slab 3, it is provided with convex portion 4, the convex portion 4
There is through hole（Not shown）, annular is provided with locating slot 401 at the inner wall position of the through hole, is combined with the through hole
Internal core rod 5, is provided with the positioning strip 501 for coordinating the locating slot 401 at the outer ring position of the internal core rod 5.
A preferred embodiment in the utility model, is welded and fixed between the wing bar 2 and the inner core body 1.
A preferred embodiment in the utility model, spot welding between the wing bar 2 and the draw-in groove are fixed.
A preferred embodiment in the utility model, arranges matcoveredn at the outer ring position of the inner core body 1
111.
A preferred embodiment in the utility model, interference fits between the wing bar 2 and the draw-in groove.
The beneficial effects of the utility model are：This device can increase the bending resistance of inner core body by wing bar, pass through
Arranging circular slab carries out inner ring support, it is to avoid the surface of inner core body deforms, it is ensured that using reliability, while being taken out
When core is operated, inner core body can be helped and departed from by joints cement pipeline with rotary inner core bar, facilitate core pulling, the knot of this device
Structure is relatively simple, and cost is more cheap, is suitable for promoting the use of.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Principle of the present utility model is described simply, on the premise of without departing from the utility model spirit and scope, the utility model can also
There are various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model.The utility model will
Protection domain is asked to be defined by appending claims and its equivalent.
Claims (5)
1. the mandrel structure that a kind of concrete duct is poured, it is characterised in that：Including inner core body, the inner ring of the inner core body
At position, annular is provided with the wing bar of more than three, and the length of the wing bar is identical with the length of the inner core body, described interior
The circular slab for being internally provided with more than three pieces of core body, is provided with the cooperation wing bar and uses at the outer ring position of the circular slab
Draw-in groove, be provided with convex portion at the shaft core position of the circular slab, the convex portion has through hole, in the inner wall position of the through hole
Place's annular is provided with locating slot, is combined with internal core rod, is provided with cooperation at the outer ring position of the internal core rod in the through hole
The positioning strip of the locating slot.
2. the mandrel structure that concrete duct according to claim 1 is poured, it is characterised in that：The wing bar is interior with described
It is welded and fixed between core body.
3. the mandrel structure that concrete duct according to claim 1 is poured, it is characterised in that：The wing bar and the card
Between groove, spot welding is fixed.
4. the mandrel structure that concrete duct according to claim 1 is poured, it is characterised in that：Outside the inner core body
Circle arranges matcoveredn at position.
5. the mandrel structure that concrete duct according to claim 1 is poured, it is characterised in that：The wing bar and the card
Interference fits between groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620849504.5U CN206011433U (en) | 2016-08-08 | 2016-08-08 | The mandrel structure that a kind of concrete duct is poured |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620849504.5U CN206011433U (en) | 2016-08-08 | 2016-08-08 | The mandrel structure that a kind of concrete duct is poured |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206011433U true CN206011433U (en) | 2017-03-15 |
Family
ID=58248477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620849504.5U Expired - Fee Related CN206011433U (en) | 2016-08-08 | 2016-08-08 | The mandrel structure that a kind of concrete duct is poured |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206011433U (en) |
-
2016
- 2016-08-08 CN CN201620849504.5U patent/CN206011433U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170808 |